| 11. | Limb Body Wall Complex is a lethal birth defect.
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| 12. | In others, the male penetrates the outer body wall.
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| 13. | The nervous system is simple, and restricted to the outer layers of the body wall.
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| 14. | Defective ventral body wall formation yields a heart unprotected by the pericardium, sternum, or skin.
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| 15. | The body wall is thin and transparent, but when illuminated, shows a light green tint.
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| 16. | They are invaginations of the outer body wall.
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| 17. | Posterior body wall separates dorsal and ventral mantles.
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| 18. | The body wall was very thin, and perforated.
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| 19. | The tadpoles are a dark brown colour, with a clear, yellow tinge on the body wall.
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| 20. | The proboscis is an infolding of the body wall, and sits in the rhynchocoel when inactive.
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